Power couple. Madonna with daughter Lourdes. Photo: Getty Images

Who's that girl blogging about Madonna's new clothing line? Why, it's none other than her daughter Lourdes Leon!

Proving herself to be a savvy business woman like her mom, the stylish teen chose to make her public debut as a writer on the Web site for Material Girl, the clothing collection she designed with Madonna for Macy's.

"Helluuur thurrrr, I'm Lola and this is my first blog entry so it's kind of like ummmm....," begins Leon.

"I'm just going to use this blog entry to tell y'all a little bit about myself. I'm 13 and I'll be 14 in October, so I can't wait for that because I am FINALLY allowed to dye my hair... THANK YOU MOTHER!!"

Leon, who is shown wearing a coy sideways glance, her long brown hair pulled up, and a blue zip-front mini dress with a white graffiti pattern across the front, goes on to dish about her favorite fashions.

"I am totally obsessivo about 80's shorts... You know the kind that makes your butt look kinda big, with a grunge-looking shirt tucked in," she says. "It's kinda nerdy but I love it."

In a not-so-subtle plug for her clothing line, which arrives at Macy's on Aug. 3, Leon adds, "The 80's are another huge obsession of mine, which is totally amazingly awesome because Material Girl...HELLO! It's like 80's themed, which pretty much rocks, so yeah."

And it's clear that Leon -- who deems My Chemical Romance "THE BEST BAND EVER for realzzzz" -- is serious about her job as a style tastemaker. She boasts about her love of "brogues or as some people call them 'oxford shoes,'" praises London for having the best stores for shopping, asks readers for their opinions on rompers ("is that like a hit or miss, 'cause I'm not sure") -- and don't even get her started on gladiator sandals.

"No joke gladiator sandals are OUT," she says. "They came out in summer 2008 and I was like, ok those are really cute. Then 2009 comes around and people are still wearing them so I'm like, ok whatever it's just a phase. BUT NOOOOO. Because good old 2010 is now coming along and people are STILL wearing them, and then I was just like OK NO! It's been three years people COME ON!!!!!!!!! I'm just like what????"

The tween trendsetter, whose Things I Love section includes photos of Molly Ringwald and Jon Cryer from "Pretty in Pink," Christian Louboutin metal-studded flats, and a shot of Agyness Deyn in '80s attire, ends her blog by saying, "what do you know, it wasn't all like "ummmmm". I look forward to writing my second one. Stay tuned if you don't already think I'm annoying."

Trust, us, Lola, we'll be back!

In related news, read StyleList's take on whether teen queen Miley Cyrus is dressing too sexy.